feat(Activity): add missing fields

src/structures/Presence.js

@@ -138,6 +138,13 @@ class Presence {
   }
 }
 
+/**
+ * The platform of this activity:
+ * * **`xbox`** - playing on Xbox Live
+ * * **`samsung`** - playing on Samsung Galaxy
+ * @typedef {string} ActivityPlatform
+ */
+
 /**
  * Represents an activity that is part of a user's presence.
  */
@@ -146,7 +153,13 @@ class Activity {
     Object.defineProperty(this, 'presence', { value: presence });
 
     /**
-     * The name of the activity being played
+     * The ID of the activity
+     * @type {string}
+     */
+    this.id = data.id;
+
+    /**
+     * The name of the activity
      * @type {string}
      */
     this.name = data.name;
@@ -194,6 +207,12 @@ class Activity {
         }
       : null;
 
+    /**
+     * The platform the game is being played on
+     * @type {?ActivityPlatform}
+     */
+    this.platform = data.platform || null;
+
     /**
      * Party of the activity
      * @type {?Object}

typings/index.d.ts

@@ -21,6 +21,8 @@ declare module 'discord.js' {
 
   //#region Classes
 
+  type ActivityPlatform = 'xbox' | 'samsung';
+
   export class Activity {
     constructor(presence: Presence, data?: object);
     public applicationID: Snowflake | null;
@@ -30,11 +32,13 @@ declare module 'discord.js' {
     public details: string | null;
     public emoji: Emoji | null;
     public flags: Readonly<ActivityFlags>;
+    public id: string;
     public name: string;
     public party: {
       id: string | null;
       size: [number, number];
     } | null;
+    public platform: ActivityPlatform;
     public state: string | null;
     public timestamps: {
       start: Date | null;